Side bearing for railway-cars.



No. 7|2,|s|. Patented Oct. 28,1902.

F. R. NWALL. SIDE BEARIN RAILWAY CARS.

(A Mar. 10, 1902.)

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N ITED STATES PATENT OFFICE.

FREDERIC K R. CORNWALL, OF ST. LOUIS, MISSOURI, ASSIGNOR TO CHICAGO RAILWAY EQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, A CORPORA- TION OF ILLINOIS.

SIDE BEARING FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 712,181, dated October 28, 1902.

Application filed March 10, 1902. Serial No. 97,487. (No model.) A

To wZZ whom it may concern:

Be it known that I, FREDERICK R. CORN- WALL, a citizen of the United States, residing at the city of St. Louis, State of Missouri,

have invented a certain new and useful Improvement in Side Bearings for Railway- Cars, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a vertical sectional view of my improved roller-bearing, and Fig. 2 is a cross- I 5 sectional view through the same.

This invention relates to anew and useful improvement in side bearings for railwaycars, the object being to simplify devices of the character described.

. My invention consists in the construction,

a bolster, as is Well understood. From this base-plate rises a vertical Web 2, carrying a 'hollow hub portion 3, the outer periphery of said hub portion forming a track for the anti- 0 friction-rollers, while the opening through the hub is designed to receive the inwardlyextending hubs of the bearing-rollers.

4 and 5 indicate bearing-rollers arranged on each side of the vertical web, said bear- 3 5 ing-rollers preferably having conical faces and each of said rollers being provided with an inwardly-extending hub portion 6,through which hub portions are formed openings for the reception of a through-bolt 7 ,said throu gh- 0 bolt holding said" rollers in position on their support. Each roller is provided with an internal track, between which and the hub of the hearing are arranged antifriction-rollers 9, said rollers being preferably cylindrical and arranged so as to forman endless chain for supporting each roller. The cone of the rollers is preferably determined by the distance of the hearing from the king-pin of the truck. The vertical web, which is provided with oppositely-extending supporting- 5o collars, is made relatively thin, so that the inner edges of the rollers will be located close to each other, leaving a space approximately the'distance of the thickness of the web. In this manner the companion member is not liable to strike in the space and crush or mutilate the inner edges of the rollers. I

In practice it is designed that the entire weight shall be carried by the antifriction de- Y vices, the rollers serving practically as con- 6o tinuons bearing-plates rotating in a vertical plane. The bolt is employed simply to hold the rollers in position on their supportingstandard. Byforming continuous chains of rollers for each roller-bearing the surfaces of the antifriction-rollers are not liable to become flattened by grinding. Furthermore, the antifriction-rollers are displaced, so that the liability to wear of any particular antifriction-roller is reduced to a minimum. In this same manner bearing-rollers may be circumferentially displaced, and in whatever position they may be placed they are always 'in readiness for service.

I am aware that many minor changes in the construction, arrangement, and combination of the several parts of my device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my inven- 8o tion.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a side bearing for railway-cars, the combination with a support havinga circular hub-flange, a roller provided with a flange extending over said hub-flange, and antifriction devices interposed between said hub; flange androller-flange; substantially as de- 0 scribed.

2. In a side bearing'for railway-cars, the combination with a support, of bearing-rollers arranged on each side thereof, and a concen-" tric series of antifriction devices cooperating with the bearing-rollers substantially as described.

3. In a side bearing for railway-cars, the

combination with a support, of coned rollers arranged on each side thereof, said rollers having interior track-faces, and antifriction devices cooperating with said track-faces; substantially as described.

4. In a side bearing for railway-cars, the combination with a support having circular hub-flanges extending on each side thereof, of rollers supported by said l1ub-flanges, and a bolt axially arranged with respect to said rollers for holding them in position; substantially as described.

5. In a side bearing for railway-cars, the combination with a support having hubflanges, of rollers formed with hub portions introduced therein, a through-bolt passing through the hub portions of the rollers, each roller being provided with an interior trackface, and antifriction-rollers interposed between said track face and the hub portion of the support; substantially as described.

In testimony whereof I hereunto affix my signature, in the presence of two witnesses, this 7th day of February, 1902.

FREDERICK R. CORNWALL.

Witnesses:

GEORGE BAKEVVELL, LENORE J. WILSON. 

